The Women's 50m butterfly event at the 2010 South American Games was held on March 27, with the heats at 10:00 and the Final at 18:00.
Medalists
edit| Gold | Silver | Bronze |
Daynara de Paula Brazil
|
Daniele Jesus Brazil
|
Jeserik Pinto Venezuela
|
Records
edit| Standing records prior to the 2010 South American Games | ||||
|---|---|---|---|---|
| World record |  Therese Alshammar (SWE)
|
25.07 | Rome, Italy | 31 July 2009 |
| Competition Record | Gabriella Silva (BRA)
|
27.95 | Buenos Aires, Argentina | 16 November 2006 |
| South American record | Daynara de Paula (BRA)
|
25.85 | Rome, Italy | 31 July 2009 |
Results
editHeats
edit| Rank | Heat | Lane | Athlete | Result | Notes |
|---|---|---|---|---|---|
| 1 | 3 | 4 | Daynara de Paula (BRA)
|
27.21 | Q CR |
| 2 | 2 | 4 | Daniele Jesus (BRA)
|
27.91 | Q |
| 3 | 3 | 6 | Jeserik Pinto (VEN)
|
28.17 | Q |
| 4 | 2 | 5 |  María Clara Sosa (COL)
|
28.62 | Q |
| 5 | 1 | 4 |  Loren Yamile Cabello (ECU)
|
28.77 | Q |
| 6 | 1 | 5 |  Manuela Morano (ARG)
|
28.88 | Q |
| 7 | 1 | 3 | Ayelen Becker (ARG)
|
28.98 | Q |
| 7 | 2 | 3 | Elimar Barrios (VEN)
|
28.98 | Q |
| 9 | 1 | 6 | Ximena Espinol (ECU)
|
29.85 | |
| 10 | 2 | 6 |  Raissa Andrea Guerra (URU)
|
29.94 | |
| 11 | 2 | 2 |  Maria Wong Rosales (PER)
|
30.18 | |
| 12 | 1 | 2 |  Nilshaira Isenia (AHO)
|
30.19 | |
| 13 | 3 | 2 |  Karen Torrez Guzman (BOL)
|
30.28 | |
| 14 | 3 | 7 | Massie Carrillo Yong (PER)
|
31.16 | |
| 15 | 2 | 7 |  Josefina Meneses (CHI)
|
31.48 | |
| 3 | 3 | Eliana Barrios (VEN)
|
DNS | ||
| 3 | 5 | Carolina Colorado Henao (COL)
|
DSQ |
Final
edit| Rank | Lane | Athlete | Result | Notes |
|---|---|---|---|---|
 |
4 | Daynara de Paula (BRA)
|
26.77 | CR |
 |
5 | Daniele Jesus (BRA)
|
27.35 | |
 |
3 | Jeserik Pinto (VEN)
|
27.58 | |
| 4 | 6 | Loren Yamile Cabello (ECU)
|
28.05 | |
| 5 | 6 | María Clara Sosa (COL)
|
28.46 | |
| 6 | 1 | Ayelen Becker (ARG)
|
28.73 | |
| 7 | 7 | Manuela Morano (ARG)
|
28.92 | |
| 8 | 8 | Elimar Barrios (VEN)
|
28.99 |